marshall



(No Model V 3 Sheets-Sheet 1.

E. MARSHALL. Sewmg Maohlne No. 239,180. Pgtented March 22, 1 81.

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HEW. WASHINGTON. D C

- Nv PETERS, PMOTDLITHDGRAP (No Model.) 3 Sheets-Sheet 2 -E. MARSHALL.

Sewing Machine.

No. 239,180. Patented March 22,1881.

N. PETERS, FHOTO-LITNOGRAFHER WASHINGTON. D. C V

(No Model 3 Sheets-Sheet a,

E. MARSHALL. Sewing Machine.

No. 239,180. Patented March 22,1881.

' l I aw/Mu N. PETERS, PHOTO-LITHOGRAFHER. \VASHINGTpN, n C.

UNITED STATES PATENT OFFICE.

EDWARD MAnsnALL, on BIRMINGHAM, COUNTY on wAnwIox, ENGLAND.

SIEWING-YMACHINE.

SPECIFICATION formingpart of Letters Patent No. 239,180, dated March 22, 1881.

7 Application filed Jnly 19, 1880. (No model.) Patented in England December 12, 1879.

rangements or combinations of parts for winding cotton, silk, or other thread upon-shuttle spools or bobbins used in sewing-machines.

On the axis of the driving-wheel, on the outer side, or side opposite the goose-neck of the machine, I place a toothed wheel of smaller diameter than the driving-wheel, so as to be inclosed by the rim thereof, the said toothed wheel turning loosely upon the said axis, and

being furnished with a handle for turning it.

On the base of the machine is a spring horizontal bolt, which bears against the inner face of the driving-wheel, and which snaps into a hole in the driving-wheel when the said hole is brought opposite to it, and therebylocks the driving-wheel, and through it the other working parts of the sewing-machine. By means of a thumb-plate carrying an incline, the bolt can be turned on its axis, when the said incline, acting on a fixed incline or part on the frame of the machine, withdraws the springbolt out of action. The axis of the spool-carrier terminates in a pinion, which, when the spool is placed in the said carrier, is made to gear with the toothed wheel, and by turning the said toothed wheel the winding of the thread upon the spool may be effected. The position of the locking-bolt is such that its thumb-plate must be depressed to permit of the introduction of the spool into the spoolcarrier, and when the thumb-plate is in its depressed position the locking-bolt is thrown into action,and locks thedriving-wheel and the other working parts of the sewing-machine. When the spool has been filled and removed the raising of the thumb-plate of the lockingbolt throws the said bolt out of action, so that the sewing-machine may be worked, and at the same time shields the spool-carrier from injury.

and Fig. III represents an end elevation of the same. Fig. IV represents, in horizontal section, the locking-bolt, together with its case and thumb-plate. In Fig.1 the driving-wheel is represented locked and the spool-carrier in position for work, and in Fig. II the driving-wheel is represented unlocked and the spool-carrier thrown out of ing toothed wheel.

The same letters of reference indicate the same parts in Figs. I, II, III, and IV.

a is the ordinary driving-wheel on the axis 1), an inside toothed wheel, 0, on the said axis 1) transmitting the motion to the working parts of the machine in the ordinary way. a is the handle of the driving-wheel a. On the said axis b is placed, outside the drivingwheel a, or on the side-opposite the gooseneck, a driving-wheel, e, of smaller diameter. This wheel 6 is inclosed by the rim of the driving-wheel c and is free to turn on the axis thereof. It is provided with a handle, 6 for working. f is the shuttle-spool, and his the spool-carrier by which it is rotated. One endof the said spool-carrier It has the form ofahollow cone, into which one end or flange of the spoolf passes, the pivot on the other end of the said spool turning in the bean ing 41. A coiled spring, acting against the conical end of the spool-carrier h, presses it outward when at liberty to move, and causes the said spool-carrier to bear forcibly against the flange of the spool f, so that the said spool-carrier and'spool rotate together. On the other end of the said spoo1-carrier h is a pinion, k, which can be made to gear with the toothed wheel 6, as represented in Fig. I, or be ungeared from the said toothed wheel 0, as represented in Fig. II. When geared with the wheel 0 the motion of the said wheel 6 may be transmitted to the spool-carrier and spool for windingthe silk or other thread upon the spool.

gear with its driv- I is a spring horizontal bolt for locking the driving-wheel ct when the windin g mechanism is in use. The said bolt 1 works in a case on the goose-neck or upright m of the machine, and the said bolt is pressed outward or into its locking position by the coiled spriii g represented. When the bolt 1 is at liberty to move it snaps into a hole, at p, in the driving-wheel a, when the said hole 19 is brought opposite it, as represented in Fig. I. The driving-wheel a, is thereby locked, and through it the working parts of the sewing-machine. On the end of the bolt 1 is a thumb-plate, at, having a cam or incline, at q, for withdrawing the bolt lwhen the said thumb-plate is raised into the position represented in Fig. II. The withdrawing of the bolt 1 is effected by the cam or incline g on the thumb-plate a bearing against the straight face of the upright m, as'will be understood by comparing the positions of the thumb-plate in Figs. II and IV. In Fig. IV the thumbplate is represented in its depressed position and the bolt-shot, and in Fig. II in its withdrawn position and its spring compressed. When the thumb-plate h is in its raised position, Fig. II, it shields or protects the spoolcarrier h.

When it is wished to use the machine for winding thread on the shuttle-spool the thumbplate a is turned down into the position represented in Figs. I and IV. The bolt 1 is thereby permitted to take its lookin g position and lock the driving-wheel a, and through the said wheel the working parts of the sewing-machine, and the spool-carrier is uncovered. The spool is next placed in the spool-carrier h by pressing the latter inward so as to compress its coiled spring. The pressing back of the spool-carrier causes'its pinion h to gear with the toothed wheel e, as represented in Fig. I, and by now turning the said toothed wheel e by its handle e the winding of the thread upon the spool may be effected.

Fig. V represents a side elevation of a portion of a sewing-machine containing a modification of the winding mechanism last described. The winding mechanism represented in Fig. V is especially fitted for use with sewing-machines to be driven by a treadle, or by steam or power other than manual. In this arrangement the spool-carrier h and lockingbolt lwork in cases h Z respectively, made on the outside of the upright m of the machine, and the bearing 6 for the spool is carried by the said cases h 1 instead of by the base-plate of the machine. The cam or incline q, for takin g the bolt Z out of its locking position when the thumb-plate h is raised, is made on the edge of the case 1 containing the bolt 1, a short arm, 10 on the said thumb plate at, bearing against the cam or incline q, as represented. The action of the parts of this arrangement is the same as corresponding parts of the arrangement represented in Figs. 1, II, III, and IV.

Having now described the nature of my invention and the manner in which the same is to be performed, I wish it to be understood that I do not limit myself to the precise details herein described and illustrated, as the same may be varied without departing from the nature of my invention; but

I claim as my invention of improvements in sewing-machines 1. The combination, with the driving-wheel of a sewing-machine, of a gear-wheel supported loosely on the axis of the driving-wheel, on the side opposite the goose-neck, and inclosed by the rim of said wheel, means, as indicated, for imparting independent rotation to said gearwheel, a spool-carrier, and a gear for imparting motion to the carrier from the aforesaid gear-wheel, substantially as described.

2. The combination of the driving-wheel of a sewing-machine, the independent gear-wheel turning loosely on the axis of said drivingwheel, the spool-carrier, and gear,with a spring locking-bolt, supported on the stationary machine-frame, and adapted to lock the drivingwheel, and through it the other working parts of the sewing machine, substantially as described.

3. The combination of the spool carrier, spring-bolt, and thumb -plate, relatively arranged, substantially as described, so that said plate forms a shield to the spool-carrier while holding back the said bolt, but exposes the same on being turned to release the bolt, as set forth.

EDWARD MARSHALL. n s.] 

